Apparatus for depositing material in well holes



J. D.V HAYNEs 2,453,068

v2 Sheets-Sheet l INVENTOR James H05/nes l Nov. 2, 1948.

APARATUS FOR DEPOSITING- MATERIAL IN WELL HOLES Filed Jan. 8,' 1945 wu. l www l A TTOfQ'A/EYS 2 Sheets-Sheet 2 ATTORNEYS J. D. HAYNES AEPAEETUS FOR DEPOSITING MATERIAL IN WELL HOLES 4 Fied Jan. E, 1945 Patented Nov. 2, 1948 APPARATUS FORFDEPOSITIN G MATERIAL IN WELL HOLES James D. Haynes, Kilgore, Tex., assignor to The f Dow Chemical Company, Midland, Mich., a corporation of Delaware Application January S, 1945, Serial No. 571,738

11 Claims. 1

The invention relates to apparatus for depositing liquid materials in deep wells. It more par-` ticularly concerns an improved dump bailer apparatus which may be run into a well on a cable,

or the like, and operated thereby to completely 5 finger release Il. As Shown, the housing |5.iS4 unload its charge by positive displacement means. internallythreaded with a right handthread and `One of the objects of the invention is to provide the thread engages the externally `threaded por.. an apparatusfor lowering into deep wells a charge tion I8 of the release for the Spring DaWlS.I Anu of a liquid agent, the complete displacement of octagollal head i9 integral .With thelelelse lS which from the apparatus into the well is assured. 10 provided for faltatng its rolaOIl and` CI I1SB` Another object is to provide an apparatus of the quent IOIlgitudinal mOVeIIlent O11 the thread irlaforesaid character which protects the liquid Wardly 01 outwrdlyoftheihollsing |5- III Fig- 1,.. charge from contamination with liquids already the DLWl` release S SllOWnfn the inward 1305i'` in the well while being lowered thereinto. Other tOIl in the llOllSiIlg 5 S0 aS 00 WlhhOlCl the PaWlS objects and advantages will appear from the foll5 `I6 from engagement with the SerratOIlS 20' 0f. lowing description of the invention, reference bethe piston rOC-` In Figv6, the WW1 releaSe iS mg mede to the accompanying drawings in shown in the outward position allowing the spring Whichpawls to engage the serrations of thepiston Fig. 1 is a longitudinal sectional view of a prerod, preventing its movement outwardly through ferred form of the invention completely assem- 20 `the cylinderhead. med, the discharge Valve being in the Closed posi; Piston 2 l, attached to the. lower end of piston tion, the slide valve in the open position, and the lrod I4, operates within `the `cylinder II. Just piston rod latch in the retracted position. below the piston 2I (when at the top of theovl- Figo 2J 3, 4, md5 'ere emerged oross Sections inder), the cylinder ll `is provided with a loadi onthe lines 2 2" 3 3', 4 4',` and 5 5'7 re- 25 `ing port A22 adaptedtoreceivethe spout of a spectivelmof Fig. 1. i' funnel 23 for example (see Fig. 1), to facilitate Fig. 6 is a fragmentary enlarged View ora the introduction of a liquid charge into thecon-` portion of the apparatus of Fig. 1 before lowering tailler @Cylinder 0f the ballen I into the weil showing the position of the piston The lower` threaded end 24 of Cylinder II enafter charging the Container witna full load and `edges the volvo seating ring 25 having a beveIed the piston roo laten in the rod engaging position. Seat portion 26 and volvo Dort 21 forming o dis- Fig, 7 is o) View of the lower portion .of the op.` chargev `opening for the cylinder. The ring 25 params oflli'ig- 1 resi-,ing on 'the teil pipe in the also Yserves as a coupling `or` collar in which is bottom of a we11,the discharge valve being" in the Secured by Screw threads the upper ond 28 of the open position and the slide valve closed. Cylindrical Slide Valve bOClY 29 near the 130D 0f Fig. 8 is aifragmentary sectional View show- Which ls DTOVded a Cleaning Dort 30- ing a modiiioation of the apparatus oi'Fig. 1, the Volvo Stom 3|. of Smaller diameter than' the discharge Valve being in the open position. DOi 2l thTOugh Which it passes, carries a head Fig. 9 is a cross section on the line 9-9' of portion 32 adapted to seat upon the valve seat Fig. 8, 40 .26 to close vthe port 2l! The lower end of the. 'Fig 10 is a similar view to that of Fig, 8 valve stein is attached tothe head 33 ofa cylinshowing the apparatus resting on the tail pipe .drical slidevalve 34 which makes a sliding t in the bottom of a well, the discharge valve bewith the inside wall ofthe cylindrical slide valve ing in the open position. Y. body 29. The slide valve 34 co-operates with the Like numerals refer to like parts throughout valve vbody 29 to open or close the port 30, which the drawings. is shown in Fig. 1 inthe open position and in The apparatus illustrated in Figs. 1 to 7., in` Fig. 7 in theclosed position, respectively, with clusive,'comprises a container I I adapted to hold respect to this port. I i a quantity of liquid material to be deposited in Onto the lower end of the slide valve body 29 the well. Its outside diameter is slightly less issecu-red areducing coupling 35, the smaller end than that of the well it is to enter and of such of which is machined toserve as a guide for the length as to hold a` suitable volume of liquid.. tail pipe 3-which passes through it in a sliding The larger end oa reducing coupling I2 is se.- t. The upper `end of the tail pipe is attached cured to the upper end of the container Il by to the bottom 4B of the slide valve 34 and serves screw threads I3 andserves as the cylinder head, 55

the small` end providing an opening to admit the serrated piston rodlIl or ratch, and to sup-I port the-housing l5 for the piston rod locking` spring pawls or ngers I6 and spring pawl or `to move it eitherfup or .downlwithin the housing '29, thereby closing or opening, respectively, the cleaning port 39. The head 33 of the cylindrical slide valve is provided with ports 4I which serve as passages for the liquid charge to flow from the cylinder I I into the interior of the slide valve 34 and thence into the tail pipe 36 when the slide valve is in thetop position, as shown in' Fig. 7.

The lower end of thev tail pipe 36 is providedwl with discharge ports 31 in the side wall above the bull plug 38 attached to the lower end of the tail pipe by the collar 39.

The upper end of the piston rod I,4`is shown in Fig. l 'attached to a set of jars 42 by a coupling 43, the jars being attached to a cable-44 'by a: cable socket 45.

In the modication shown in Figs. 8, 9, and 10, the slide valve housing 29 and slidevalve-34 of Figs. 1 and '1 have been dispensed with, the lower end of the valve stem 3l being connected directly to the top of the tail pipe 49 of similar constructionk to' thatof thetailpipe of Figs. 1 and 7, except thatit is provided with .ports 50 just'below thepoint offattachment toy the-valve:A stem". Replacing vthe slide valve housing 34 ofl Figs. 1 and '7 is the bushing 5I, the threaded periphery 52 of Whiclrengagesthe'lower threads of theV Acoupling ring .f 25,`

a-re. cut away Vto provide aipassage ,betweenV the top.4

and bottom of the bushing: The upper externally threaded end of thetubular member 58 engages the internal threads of'thefboss'53to which it is thus secured. The member provides asupport for the guide collar 51 secured ,to the lowerend of 56. The smaller opening 58 ofithefguideicollar is machined so Ias to make a closefsliding twith thetail pipe 49 whicl'rpasses .through it.

The method of manipulating the'two forms of" theapparatus illustratedis essentiallyfthe same as' regards the steps of chargingthe container, operating the pistonv rod `and rodlatchvmechanism, and i the f expulsion/.of the charge from: theI con.

tainer when the apparatus has -beenftloweredrinto.`

the well. These manipulative operations are described hereafterzlrst withr respect to the.-specific.v

form illustrated in Figs'. lito "I," inclusive.:

.For'charging the container'with they liquidto` be deposit'edin. a. well'.usingutheapparatus .of 'Figs'. 1 to 7', inclusiva-the bailer assembly issuspended in a vertical position as ishowninrFig. l. so thatv the Weight of Ethai-tail .pipeand slide valve 3d is borne-by thevalve 32 resting on its seat `26fsoy as to close the ,discharge port ofthe: cylinder, slide valve 34 thus being in the. lower position. uncovering .cleaning lport 30.'

in thefhousing l-funtil' it reachesnthe down position', as shown, soithat the annular portion I1 eni gagesY thel pawls I6 anddisplacesnthem from ene i gagement with theserrations: 2B1in'fthefpiston 'rod' I4;ethereby allowing the pistonZI to be held at the top of cylinder I I; above the charging port 2-2.

A funnel 23, or the like, is theninsertedintothe charging' port "22'xand the charge of ,liquidrpoured into'the cylinder II.; After charging the cir-linden;

the funnel' is wi=thdrawrrandgav support 4I'iplaced under the reducing coupling. 3:5. The strain on.

the :cab-le is released"allowing the apparatus to rest upon 'the support 46: vThe weight ofytlie; piston and: fpistoirirod. causes the`V piston -tor descend shown, this bushing is provided with an'annularv internally threaded Pawl'v release I8 is `rol t'ated. in a right handed: direction on the :threads f onto the liquid as shown in Fig. 6. awl release I8 is then rotated in a left han-ded direction until it reaches the upper position in the tubular hous-v ing I5 so that the annular portion I1 moves away from the pawls- I6 allowing them to engage a pair of serrations 20 in the piston rod I4, thereby locking thefpistonlagainst upward movement relative. to thev cylinder I I.' With `piston: 2I in this position below opening 22, the liquid charge in the cylinder is sealed against contamination and the valve seating collar v25 rests upon the head 33 ofv the slide valve-34, therebycausing-the cylinder discharge port 21 to openrandy slide .valve cleaning port 30 to close, as shown iny Fig.,1. With 1- the-valvehead 32 oi its seat 26 andfslidevalve port 30 closed, a passage is provided for the liduidfin the cylinder II to ow from it through valve ports 4I, tail pipe 3S, and ports 31 into the Well hole. By further loweringfthe cable. 44 and operating the jars 42, thepiston rod- I`1 and piston.. 2I are caused to descend in cylinder II, .thereby assuring the expulsion of. the liquid charge.4 the piston rod descendsfwhile theannularportion.. I1 of the pawl release I8` is in4 the. up position', I as shown in Fig. 6, upward or reverse movement of the piston isrprevented so that during` the um loading and4 withdrawalv of the apparatus from..v

the end, thecharge vcannot re-enter thebailex` from the well.

After expelling .the liquid charge; the appaj ratus. is Withdrawn from the well; by pulling it up l with the cable and rested upon supportM` kThe I tail pipe andslide valve thenmay be' cleaned by vintroducing* a cleaningiiuid through the cleaning port-33 which remains. open so long as theA tail pipe is allowed to hang free as when the apparay tus is suspended from the cylinder or, piston rod. The piston maybe returned to the-.top-of the cyilnder abovethe loading port 22 turning.A the `pawl release I8l on thethreadsin the housing.;`

I5 so that the annular. por-tion I1 moves intoengagement with thepawls I6 `disengagingv them from the serrations 20 oi the p-iston rod, and then pulling the piston rod outwardly-from the cylinder until the pistonV reaches the topoi the cyl.

inder. When the pistonwhas been thusv returned..

to the top of the cylinder, the apparatusis ready for reloading.

The manipulationo the Inodiiicatiorroiwthefap,` I

paratusillustrated in Figs. 8, Quand 10 follows substantially the same procedure except that .of

cleaning theA apparatus. For` example; after chargingth-econtainercl while the piston isfat theftopy of. the cylinder, the piston is then lowered-,` onto the charge in cylinder:` ISI asrfshown in,;l?i-g.;61` and thepiston rod-tA latclied.y` against i outward movement as already described. The apparatus is then ready for loweringintoithe WelfLJthe lower* ingv being continued -until the -bullfplug' 3-8. rests on the well bottorrr'lll' as shown: Fig... 10.! Irrthei` position shownthe. weight ofthe apparatus above.. the tail pipe 49.'.'causessth'evalvef32 to be liftedoff* its seat 2`6as the apparatus: (except valven32- and? tail Vpipe 49) moves downwardly untilv 'the bottomw face of bushingil abutstheA top 6f0f`oi ther tail pipe 45; Ther chargefiiqui'd passes.: fromy tle1- container# Hthroughthe discharge port 27, openings 55, the

annularspace 59, ports 55 into tail pipe 49 and then .through openings 6 I `into the well hole. The charge is completely expelled from the cylinder by causing the piston to move downwardly with the aid of the jars 42, if necessary, as already described for the preferred form of the device.

Cleaning the apparatus after use may be accomplished by introducing a cleaning fluid into the apparatus through port 22 while the top of the tail pipe abuts the bottom of bushing I, thus opening discharge port 2l, and when the piston `is raised to the top of the cylinder. The cleaning fluid then may flow through the cylinder, discharge valve and tail pipe. i The cleaned apparatus is made ready for reloading as already described.

Among the advantages of the invention are that the liquid charge-is fully protected from contamination by fluids in the well hole; complete expulsion of the charge from the container is assured and return of charge or other uid thereinto is precluded while the apparatus is in the well; by employing a known volume of liquid in the container, the amount deposited in the well can be accurately controlled; and viscid liquids such` as some of the synthetic resin-forming liquids, e. g. phenol-formaldehyde resin-forming liquids which are dicult to place in deep wells by usual methods can be readily and accurately conveyed to the bottom of deep wells and deposited therein with the apparatus.

I claim:

1. A bailer for depositing a liquid in a well comprising in combination a container for the liquid, said container having a discharge port in the bottom; a piston operable in the container for expelling the liquid therefrom; a piston rod having one end attached to the piston to operate the same; latch means adapted to engage the piston rod to prevent longitudinal outward movement of the piston rod relative to the container; latch release means adapted to disengage the latch means from the piston rod; a tail pipe adapted to receive and discharge liquid from the container; and a discharge valve linked to the tail pipe and adapted to control the flow of iluid from the cylinder to the tail pipe` through said discharge port, said discharge valve being operable by longitudinal movement of the said tail pipe relative to the container.

i 2. A bailer for depositing a liquid in a well comprising in combination a container for the liquid, said container having a discharge port in the bottom; a piston operable in the container for eX- pelling the liquid therefrom; a ratch having one endy secured to the piston to operate the same; pawls adapted to engage the ratch to prevent longitudinal outward movement of the ratch relative `to the container; means to release the pawls fromengagement with the ratch; a tail pipe in communication with the container and operable to discharge liquid from the container; and a discharge valve linked to the tail pipe and adapted to control the flow of liquid from the cylinder to the tail pipe through said discharge port, said discharge valve being operable by longitudinal movement of the tail pipe relative to the container.

3. Abailer for depositing a liquid in a well comprising in combination a container for the liquid, said container having a discharge. port in the bottom; a piston operable in the container for eX- pelling the liquid therefrom; a piston rod having one endattached to the piston to operate the Same; means on the other end of the pistonrod for; securing the same to a suspension means:- latch means adapted to engage thepiston rod to prevent longitudinal outward movement ofthe piston rod relative to the container; latch release` means for disengaging the latch means fromthe piston rod; a tail pipe communicating with the` container and operable to discharge liquidfroml the container; a discharge valve adapted to control flow of liquid from the container to the tailv pipe throughsaid discharge` port, said discharger l valve being operable by longitudinal movement of 1 the tail pipe relative to the container.

4. A bailer for depositing a liquid in a well comprising in combination a cylinder for the liquid, said cylinder having a `discharge `port in the bottom, a piston operable in the cylinder for ex-` pelling the liquid therefrom, a piston rod adapted to operate the piston, a cylinder head having, an opening therethrough through which the piston rod extends, a latch means supported -by the cylin-` der head and adapted to engage the piston rod to prevent longitudinal outward movement of the` piston rod relative to the cylinder, latch release' means adapted to disengage the latch means from the piston rod, a discharge `valve in the bottom` of the cylinder adapted to control the flow of liquid from the cylinder through the said discharge port, a tail pipe communicating with the cylinder and linked to the said discharge `valve to operate the said valve by longitudinal movement relative to the cylinder, said tail pipe being operable to discharge liquid from said cylinder.

5. A bailer for depositing a liquid in a well corn- .prising in combination a cylinder for the liquid;`

a piston in the cylinder for expelling the liquid therefrom; a piston rod having one end attached to the piston; latch means adapted to engage the piston rod to prevent longitudinal outward movement of the piston rod relative to the cylinder;

`latch release `means adapted to disengage the latch means from the piston rod; a slide valve housing communicating with the bottom ofthe cylinder and having a`cleaning port in its side wall, said cylinder having a discharge port in the bottom forming a passage from the cylinder to the slide valve housing; a slide valve in the slide valve housing adapted to form a closure for the said cleaning port; a discharge valve secured to said slide vvalve adapted to control the flow of iluid through the said discharge port; `a tail pipe operable to discharge liquid from the cylinder, said tail pipe having an end connected to the slide valve, `said slide valve having a passage` 6. A `bailer for depositing a, liquid in a well comprising in combination a cylinder for the liquid, said `cylinder having a discharge port in the bottom; a piston operable in the cylinder for` expelling the liquid therefrom; a piston `rod having` serrations along the surface to form a ratch, one end of the ratch being secured to the' piston; a, cylinder head having an opening therethrough through which the piston rod extends; a housing attached to the cylinder head and surrounding the piston rod; pawls in the housing adapted to engage the serrations onthe piston rod to prevent longitudinal outward movement of the piston rod relative to the cylinder; means to `release,` the pawls from engagement with theV 7, serrations; a cylindrical slide valve housing. communicating with the said discharge port and havingy a cleaning Vport in the side wall thereof; a slide valveV operable in the slide valve housing to open and close the cleaning port; a discharge port closure attached to the said slide valve adapted to control the ow of iiuid through the saidv discharge port; a tail pipe operable to discharge liquid from the cylinder, saidtail pipe having an end secured to the said slide valve whereby longitudinal movement of the tail pipe relative to the cylinder operates the said slide valve yand the said discharge port closure, said tail pipe having a passage communicating with the said discharge port, said cleaning port providing an entrance for the introduction of a cleaning liquid into the slide valve housing, slide valve, and tail pipe when the discharge valve is closed.

'7. A bailer for depositing a liquid in a Well comprising in combination a cylinder for the liquid having a loading port near the top and a discharge port at the bottom, a piston operable in the cylinder for expelling the liquid therefrom, a piston rod having one end attached to the piston,

ka head.A on the top of the cylinder provided with an opening through Which the piston rod extends, latch means secured to the cylinder head adapted to engage the piston rod to prevent longitudinal outward movement of the` piston rod relative to the container, latch release means adapted to disengage the latch means from the piston rod,A a discharge valve adapted to close the discharge port, a discharge valve stem on the discharge valve and extending through the discharge port, a tail pipe having` one end secured to the said discharge valve stem whereby its longitudinal movement relative to the container moves the said discharge valve. to open or close the discharge port, said tail pipe having a passage cornmunicating with the said discharge port.

8. A bailer for depositing gliquid in a well comprising in combination a cylinder for the liquid, a piston operable within the cylinder for expellingthe liquid therefrom, said cylinder having a charging port in the cylinder wall below the place occupied by the ,piston when `at the top of the cylinder and a discharge port at the bottom, a piston rod having one end secured to the piston, latch means adapted to engage the piston rod to prevent longitudinal outward movement of the piston rod relative to the cylinder, latch release means adapted to disengage the latch means from the piston rod, a discharge valve adapted to close the discharge port, a discharge valve stem attached to the discharge valve and extending through the discharge port, a tubular extension below the cylnder and having its interior communicating with the discharge port and adapted to form a, housing for the discharge valve stem, a tail pipe having one end extending into the tubular extension and secured to the discharge valve stem whereby'longitudina'l move-` ment of the tail pipe relative to the cylinder' operates the discharge valve to open or close the discharge port, said tail pipe having a passage communicating with the said discharge port and being operable to discharge liquid from the cylinder.

9. A Ibailer for depositing a liquid ina well comprising Yin combination a cylinder for theV liquid; a piston operable within the cylinder for'expelling the liquid therefrom; said cylinder having a charging port in the cylinder wall below the place occupied by the piston When-at the top of the cylinder and a discharge port at the bottom; a

piston rod having one end secured to the piston; latch means adapted to engage the piston rod to prevent longitudinal outward movement ofthe piston rod relative to the cylinder, latch'release means adapted to disengage the latch means from the piston rod; a valve adapted vto close the` discharge port; a valve stem attached to the:

valve and extendingthrough the discharge port; atubular extension below the cylinder having its' interior communicating withrthe discharge port pipe being operable to discharge liquid from thev cylinder.

l0. A bailer for depositing a liquid'in a Well comprising in combination a cylinder for the liquid; a piston operable within the cylinder forV expelling the liquid therefrom; said cylinder having a charging port in the cylinder wall below the place loccupied by the piston when at the top of the cylinder and a discharge port at the bottom; a piston rod having one end secured to the piston; means attached to the other end of the piston rod for suspending it on a cable; a cylinder head attached to the top of the cylinder having an l opening therethrough through which the piston rod extends; latch means supported by the cylinder head for preventing longitudinal outward movement of the piston rod relative to the cylinder; latch release means adapted to render inoperative said latch means; a valve adapted to close the `discharge port; a valve stem attached to the valve and extending through the discharge port; a tubular extension below the cylinder having its interior communicating with the -discharge port and adapted to form a housing for the valve stern; a tail pipe having one end extending into the tubular extension and secured to the valve stem whereby longitudinal movement of the tail pipe relative to the cylinder operates the valve to open or close the dischargev port; a head on the tubular extension having an opening therethrough to admit the tail pipe in` sliding relationship, said tailpipe having a port' in the side wall near the point of attachment 'to the valve stern whereby liquid released through; the discharge port enters the tail pipe, said tail pipe being `operable to discharge liquid .from thev cylinder.

`1l. A bailer fordepositing a liquid in a well'.

comprising in combination a cylinder for the` liquid; a piston operable within the cylinder forA expelling the liquid therefrom; said cylinder having a charging port in the cylinder wall below the place occupied '.by the piston when at the top of the cylinder anda discharge port at the bottom;

a piston rod having one end secured to the piston; means attached to the other end of the piston rod for suspending it on a cable; a cylinder head attached to the top of the cylinder having an opening therethrough through which the piston rod extends; latch means supported by the cylinder head for preventing longitudinal out# ward movement of the piston rod relative to the cylinder; latch release means adapted to render inoperative said latch means; a cylindrical slide valve housing attached to the cylinder and having its interior communicating with the discharge port of the cylinder and provided with a cleaning port communicating With the exterior of the housing near the end attached to the cylinder; a cylindrical slide valve adapted to open and close fthe cleaning port by longitudinal movement Within the slide valve housing; a top end member on the slide valve having ports for the passage of liquid therethrough; a valve closure means carried by said top end member adapted to close the discharge port of the cylinder when the slide valve moves l into the position opening the cleaning port; a bottom end member on the slide valve forming a closure therefor; a tail pipe attached to the bottom member and in communication with the interior of said slide valve whereby liquid from the cylinder entering the top end member of the slide valve passes through it into close the cleaning port and open the discharge port, respectively, when the weight of the apparatus is borne by the tail pipe, and to open the cleaning port and close the discharge port when the weight of the apparatus is borne by the piston rod, said tail pipe being operable to discharge liquid from said cylinder.

`JAMES D. HAYNES.

REFERENCES CITED The following references are of record in the file of this patent: Y

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